Filtering by keywords
You can use keyword filters to create complex Flow Monitor interface report views. This is useful when you need to view data about the traffic generated by a specific computer, to a specific domain, etc.
After you apply a filter to the Interface Details report, the dashboard report that coincides with the filter reloads with a time graph for the filtered traffic component. For example, if you apply a filter for the http application, the Top Applications dashboard report displays a time graph of http application use for the time period selected at the top of the Interface Details report.
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You can easily determine which dashboard report contains the time graph by looking for the filter enclosed in parenthesis to the right of the dashboard report title name.
: You can remove the applied filter by clicking the red X under the time graph.
To filter by keywords:
- At the top of the report, select . Filter boxes appear below the button.
- Select the type of filter you want to apply.
: When you are using a type of filter that matches a device using an IP address, you can use CIDR notation to identify a subnet of hosts from which the reports display data. For example, when you select a Sender filter type, you can specify a subnet using 192.168.11.0/24 to display information from all of the hosts in the subnet.
- . Show traffic sent by the specified device. You can match a device using its host name or its IP address.
- . Show traffic received by the specified device. You can match a device using its host name or its IP address.
- . Show traffic that used the specified protocol (such as UDP, TCP, or ICMP).
- . Show traffic that used the specified type of service.
- . Show traffic that used the specified application. The keyword must match the application name as configured in the Flow ports dialog.
: You can enter a port number instead of an application name to show all traffic transmitting over a certain port.
- . Show traffic sent by hosts on the specified domain.
- . Show traffic received by hosts on the specified domain.
- . Show traffic sent by devices whose IP addresses are registered to the specified country.
- . Show traffic received by devices whose IP addresses are registered to the specified country.
- . Show traffic sent by the specified group.
- . Show traffic received by the specified group.
- . Show traffic sent by domains that have the specified top level domain (such as .com, .net, .us, or .uk).
- . Show traffic received by domains that have the specified top level domain (such as .com, .net, .us, or .uk).
- . Show traffic by ICMP type.
- . Show traffic by packet size.
- . Show traffic by sender Autonomous System Number (ASN).
- . Show traffic by receiver Autonomous System Number (ASN).
- . Show traffic by NBAR application.
- . Show traffic by port number.
- Optionally, click to add additional filters.
- Click . The report refreshes showing only data that matches the filters you have configured.
: If you configure a filter incorrectly, you can remove it from the current view by clicking the red X located to the right of the keyword box.